//  Showtime.java (c) 2005 Kari Laitinen

//  http://www.naturalprogramming.com

//  2004-08-19  File created.
//  2005-06-14  Last modification.

//  In the GregorianCalendar class, days of week are indicated
//  by numbers from 1 to 7 so that 1 means Sunday and 7 means Saturday.

//  To learn more about the printf() method, see the comment at
//  the end of this program.

import java.util.* ;

class Showtime
{
   public static void main( String[] not_in_use )
   {
      String[]  names_of_days_of_week  =

      { "Sunday",  "Monday", "Tuesday", "Wednesday", "Thursday",
        "Friday",  "Saturday" } ;

      String[]  names_of_months  =

      { "January", "February", "March", "April", "May", "June",
        "July", "August", "September", "October", "November",
        "December"  }  ;

      Calendar  date_and_time_now  =  new GregorianCalendar() ;

      System.out.printf( "\n Current time is:  %d:%02d:%02d.%03d \n",
          date_and_time_now.get( Calendar.HOUR_OF_DAY ),
          date_and_time_now.get( Calendar.MINUTE ),
          date_and_time_now.get( Calendar.SECOND ),
          date_and_time_now.get( Calendar.MILLISECOND ) ) ;

      System.out.print( "\n Current date is:  " 
        +  names_of_days_of_week
                    [ date_and_time_now.get( Calendar.DAY_OF_WEEK ) - 1 ]
        +  ", day " + date_and_time_now.get( Calendar.DAY_OF_MONTH )
        +  " of "
        +  names_of_months[ date_and_time_now.get( Calendar.MONTH ) ]
        + " in year "  +  date_and_time_now.get( Calendar.YEAR ) + ".\n" ) ;

      System.out.print( "\n Time zone is:     "
                     +  date_and_time_now.getTimeZone().getDisplayName() ) ;
      System.out.print( "\n Difference from UTC/GMT in hours : "
            +  date_and_time_now.get(Calendar.ZONE_OFFSET)/(60*60*1000) ) ;

      System.out.printf( "\n\n Short 24-h time:  %tR", date_and_time_now ) ;
      System.out.printf( "\n Long 24-h time:   %tT", date_and_time_now ) ;
      System.out.printf( "\n Long 12-h time:   %tr", date_and_time_now ) ;
      System.out.printf( "\n MM/DD/YY date:    %tD", date_and_time_now ) ;
      System.out.printf( "\n ISO date:         %tF", date_and_time_now ) ;
      System.out.printf( "\n Date and time:    %tc", date_and_time_now ) ;

      System.out.printf( "\n Textual date:     %1$tA, %1$tB %1$td, %1$tY \n",
                                                     date_and_time_now ) ;
   }
}

/************

      The last statements above could be written alternatively as
      shown below. The method System.currentTimeMillis() returns a long
      value that contains the current time of the computer in milliseconds
      since 1970-01-01 00:00. The printf() method can interpret this
      value and print time/date information according to given
      format specifiers.


      long  current_time_ticks  =  System.currentTimeMillis() ;

      System.out.printf( "\n\n Short 24-h time:  %tR", current_time_ticks ) ;
      System.out.printf( "\n Long 24-h time:   %tT", current_time_ticks ) ;
      System.out.printf( "\n Long 12-h time:   %tr", current_time_ticks ) ;
      System.out.printf( "\n MM/DD/YY date:    %tD", current_time_ticks ) ;
      System.out.printf( "\n ISO date:         %tF", current_time_ticks ) ;
      System.out.printf( "\n Date and time:    %tc", current_time_ticks ) ;

      System.out.printf( "\n Textual date:     %1$tA, %1$tB %1$td, %1$tY \n",
                                                     current_time_ticks ) ;

****************/